Anti-government protestors have taken to the streets of Moscow for a "March of Millions", with organizers putting their numbers as high as 200,000, Russia Today reports.

While police estimates are significantly lower (22,000), whats more important is the timing of the march. Just last night armed (and sometimes masked) Russian authorities raided the homes of a number of opposition leaders yesterday, including prominent blogger Alexei Navalny and opposition socialite Ksenia Sobcha. Following the raids, #Hello1937 began trending on Twitter after the raids, a reference to Stalin's purges of 1937.